Have a look at the NES archive of Romspedia where you can find and download individual NES ROMs or the whole NES ROM Set. On top of that you can find emulators and BIOS files.

There's are so Many duplicate in it fix it

Check out the Nes ROMS

I Flashed all the USA games to my NES Classic with Hakchi 2 and even though I had duplicates of some stock games, I didn't care. Very Awesome!

CRAZY

Just wondering what PC10, PD, VS and ect mean

How can i open NES file? According to the description here i can do it with Nestopia emulator, but i can't find an official source to get it from.

Muy agradecido por ésta compilación de los exclentes juegos del NES y me encantó la organización de los archivos por carpetas, Existen héroes y luego estás tú, una leyenda.

Hi, I have a couple of rare ROMs that might be interesting to be added to your collection:
- SMB2J (aka Lost Levels) ROM converted from original FDS format to MMC3 compatible by Loopy.
- Donkey Kong 2010 ROM from Wii release that included missing Cement/Pie Factory level from original Arcade.

Very impressive collection, thanks!

You have to patch the no-intro version of The Legend of Zelda with the IPS available at baddesthacks.net.

I HAVE BEEN LOOKING FOR THIS GAME FOR AWHILE.
THE LEGEND OF IOWA.
IT IS A LEGEND OF ZELDA HACK FOR THE NES.
I DID NOT FIND IT IN YOUR LIST.

THANKS FOR ALL THE NES ROM MEMORIES.

I can't imagine how much time it took to make this pack.
The only thing I know that's missing is this:
http://info.sonicretro.org/Somari
(An NES bootleg)
I don't know if you're still working on this or not, but if you for some reason are, then there you go.

After doing a bit looking, it does have a lot of the classical NES titles that a lot of us remember. Who ever made this RAR file also did the right thing by putting the files in the places they belong in. (PD files in a PD folder, etc.) It's also separated by country as well. It also includes Pirated, Hacked, Unlicensed, even Translated titles.

Now let me explain this a bit. If you can't find the title, you may need to look under the "World" folder as that includes titles that is world known, such as Hogan's Alley, Excite Bike, Duck Hunt, Mario Bros., Popeye, & Gyromite, to name a few.

My only concern is that there is no "Japanese" titles, let alone folder. So, although it does have a very good collection of NES titles, just curious why it does not include Japanese titles. (Yes, I am aware that a lot of titles are translated in Japan as well as USA, but there are also a ton of titles that are not in any other country other than Japan. Yes, the "Translated" folder has Japanese titles, but some of us prefer the original translations of the game. Mainly because sometimes the "translated" titles have bugs due to the translation, and sometimes crash the game.)